import requests
from  lxml import   etree

headers ={
      "User-Agent":"Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36"
        "Referer":"https://www.mzitu.com/"
        }
requests = requests.get("https://www.mzitu.com/")
print(requests.txt)